Networking
Top Stories
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News
23 Apr 2026
Cisco unveils quantum network advancements
Cisco's quantum switch prototype operates like a data center switch and supports four encoding modalities. It marks a step forward in making quantum computing 'broadly viable.' Continue Reading
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Answer
27 Mar 2026
Network security management challenges and best practices
Threat actors are using increasingly sophisticated tools to make their attacks more costly. It's time for organizations to craft a comprehensive security management strategy. Continue Reading
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Definition
26 Jan 2024
private 5G
Private 5G is a wireless network technology that delivers 5G cellular connectivity for private network use cases. Continue Reading
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Definition
04 Dec 2023
big-endian and little-endian
The term endianness describes the order in which computer memory stores a sequence of bytes. Continue Reading
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Definition
01 Dec 2023
Address Resolution Protocol (ARP)
Address Resolution Protocol (ARP) is a protocol that maps dynamic IP addresses to permanent physical machine addresses in a local area network (LAN). Continue Reading
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Answer
22 Nov 2023
SASE vs. NaaS: What's the difference?
SASE and NaaS are network models with different goals. SASE combines SD-WAN with cloud-based security, while NaaS lets businesses outsource network management via a subscription model. Continue Reading
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Definition
26 Oct 2023
Ethernet
Ethernet is the traditional technology for connecting devices in a wired local area network (LAN) or wide area network. Continue Reading
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News
22 Aug 2023
VMware remakes NSX for companies using multiple clouds
VMware designed NSX+ to simplify multi-cloud networking for customers. The update will eventually replace NSX and the more advanced NSX-T within VMware Cloud. Continue Reading
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Tip
01 Aug 2023
Top 5 benefits of SASE to enhance network security
A cloud-based distributed architecture, centralized management and endpoint-specific security policies are just some of the benefits of Secure Access Service Edge. Continue Reading
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Opinion
05 Jul 2023
Cisco's vision for Networking Cloud becomes clear
Cisco is focused on simplifying, securing and delivering better experiences across networking, security, collaboration and apps in alignment with its vision to connect anything. Continue Reading
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News
06 Jun 2023
Cisco releases plans for Networking Cloud
Cisco's introduction of Networking Cloud lacked technical details and delivery dates for the high-level console for accessing all the company's network management platforms. Continue Reading
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Tip
08 May 2023
7 factors to consider in network redundancy design
Network pros should consider multiple factors when adding redundancy to network design, including network equipment, protocols, backup, processing and subnet connections. Continue Reading
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Tip
11 Apr 2023
SD-WAN vs. VPN: How do they compare?
When comparing SD-WAN and VPN, enterprises choosing between the two technologies should consider factors like cost, management and routing intelligence. Continue Reading
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Feature
03 Apr 2023
A deep dive into SD-WAN troubleshooting and monitoring
Whether in the throes of SD-WAN issues or preparing for the future, network teams should have practical steps to follow when troubleshooting SD-WAN environments. Continue Reading
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Answer
29 Mar 2023
Traditional WAN vs. SD-WAN: How do they compare?
While comparing traditional WAN vs. SD-WAN, network professionals can see the many benefits of SD-WAN, including centralized control and dynamic traffic management. Continue Reading
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Tip
29 Mar 2023
5 common SD-WAN challenges and how to prepare for them
SD-WAN technology has its fair share of risk factors, some of which include cost reduction and management. Find out how your IT team can prepare for these challenges. Continue Reading
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Definition
28 Mar 2023
Multiprotocol Label Switching (MPLS)
Multiprotocol Label Switching (MPLS) is a switching mechanism used in wide area networks (WANs). Continue Reading
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Definition
28 Mar 2023
WAN optimization (WAN acceleration)
WAN optimization -- also known as WAN acceleration -- is a collection of technologies and techniques used to improve the efficiency of data transfer across a wide area network (WAN) between organizations' centralized data centers and their remote locations. Continue Reading
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Answer
24 Mar 2023
Beyond metrics, network SLAs should measure business ops
Enterprises need to ensure network service-level agreements provide a comprehensive view of network service performance to support business operations. Continue Reading
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Tip
22 Mar 2023
How to build an SD-WAN RFP to evaluate vendors
There are key questions that belong in your SD-WAN request for proposal. Use them to better assess vendor features and capabilities, architecture, cost savings and PoCs. Continue Reading
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Tip
21 Mar 2023
5 steps to migrate from MPLS to SD-WAN
To migrate from MPLS to SD-WAN, you need a plan. Use these five steps as a guideline to avoid MPLS contract disasters, unexpected costs and delayed installation. Continue Reading
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Tip
20 Mar 2023
Follow these 9 steps for SD-WAN testing before deployment
Before an SD-WAN implementation, you'll want to run the system through a battery of tests to check for things like failover, packet delivery and traffic segregation. Continue Reading
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Definition
14 Mar 2023
WAN (wide area network)
A wide area network (WAN) is a geographically distributed private telecommunications network that interconnects multiple local area networks (LANs). Continue Reading
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Tip
13 Mar 2023
Top 9 SD-WAN benefits for businesses
Make the case for an SD-WAN implementation, and explore the benefits and main use cases for SD-WAN in enterprises, beyond traditional hybrid WANs. Continue Reading
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Definition
08 Mar 2023
network protocol
A network protocol is a set of established rules that specify how to format, send and receive data so that computer network endpoints, including computers, servers, routers and virtual machines, can communicate despite differences in their underlying infrastructures, designs or standards. Continue Reading
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Definition
07 Mar 2023
network switch
A network switch connects devices in a network to each other, enabling them to talk by exchanging data packets. Switches can be hardware devices that manage physical networks or software-based virtual devices. Continue Reading
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Tip
03 Mar 2023
SD-WAN comparison chart: 10 vendors to assess
This SD-WAN vendor comparison chart is a useful starting point to evaluate information about deployment options, pricing, security, cloud connectivity and more. Continue Reading
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Definition
27 Feb 2023
IEEE 802 wireless standards
IEEE 802 is a collection of networking standards that cover the physical and data link layer specifications for technologies such as Ethernet and wireless. Continue Reading
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Tip
24 Feb 2023
3 important SD-WAN security considerations and features
Device onboarding, control plane security and data plane security are three crucial SD-WAN security considerations enterprises should research when choosing an SD-WAN vendor. Continue Reading
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Tip
10 Feb 2023
The role of automation in SD-WAN
API integration, machine learning and AIOps are vital to achieve the benefits of SD-WAN automation, which include better network performance and faster operations. Continue Reading
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Tip
22 Dec 2022
Wireless network capacity planning and requirements
When planning wireless network capacity needs, tally your total endpoints, monitor application bandwidth usage and consider future growth. Continue Reading
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Tip
13 Dec 2022
An overview of wireless WAN
Hybrid work, modernized cellular networks, and the convergence of 5G and software-defined networking are driving factors in the maturation of wireless WAN. Continue Reading
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Tip
06 Dec 2022
How to set up a business Wi-Fi network
A Wi-Fi network is a business necessity, but setting it up takes skill and effective troubleshooting. Learn how to make Wi-Fi work and keep it running smoothly. Continue Reading
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Tip
01 Dec 2022
5 most valuable wireless network certifications
Wireless networking skills are in high demand. Having a top-notch wireless network certification can help networking newbies and pros stand out among job candidates. Continue Reading
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Tip
01 Dec 2022
A history of wireless for business and a look forward
This history of enterprise wireless takes you from WLAN development inside the enterprise to cellular data services outside the walls to make wireless-first a possibility. Continue Reading
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Feature
18 Nov 2022
Best practices for enterprise CBRS deployment
Enterprises can use CBRS spectrum to deploy private cellular networks that offer reliable and predictable coverage. Learn about installation, AP mounting and device compatibility. Continue Reading
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Answer
18 Nov 2022
How to set up backup internet connections for home offices
Reliable connectivity and secure access are must-haves for employees working from home. Here are ideas to consider when designing backup internet connections for home offices. Continue Reading
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Tip
16 Nov 2022
3 types of wireless site surveys and how to conduct them
Network teams can avoid signal coverage issues by performing different wireless site surveys as they evaluate new spaces, set up sites and operate the network. Continue Reading
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Answer
10 Nov 2022
What is the difference between WLAN and Wi-Fi?
Although the terms WLAN and Wi-Fi are used interchangeably, the two wireless technologies differ. Wireless LAN uses radio technology to connect nodes, while Wi-Fi is a type of WLAN. Continue Reading
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Definition
09 Nov 2022
CBRS (Citizens Broadband Radio Service)
Citizens Broadband Radio Service, or CBRS, is the set of operational rules given to a slice of the shared wireless spectrum and the technologies used in that spectrum. Continue Reading
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Answer
07 Nov 2022
Wireless access point vs. router: What's the difference?
The choice of a wireless access point vs. a router for wireless network connectivity depends on the physical size of the network, needs of the organization and the number of users. Continue Reading
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Tip
04 Nov 2022
Troubleshoot wireless network connection problems in 10 steps
When troubleshooting wireless network issues, several scenarios can emerge. But valuable end-user insights can help network administrators root out problems. Continue Reading
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Feature
02 Nov 2022
9 steps for wireless network planning and design
Wireless network planning may appear daunting. But IT teams can tackle this task in nine key phases, which include capacity, redundancy and site surveys. Continue Reading
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Tip
24 Oct 2022
CBRS vs. Wi-Fi: What's the difference?
Citizens Broadband Radio Service enables private LTE networks and supports enterprise WAN deployments. But that doesn't mean Wi-Fi is going away anytime soon. Continue Reading
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- Definition 28 Sep 2022
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News
04 Aug 2022
Arista acquires Pluribus Networks for cloud fabric product
Arista plans to fold Pluribus technology into a new product that lets telcos run a software-defined network across switches, routers, computer servers and accelerator DPUs. Continue Reading
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News
06 Jul 2022
Evernote, Home Depot outsource network management
Offloading daily network management to networking vendors allowed Home Depot and Evernote to direct in-house IT staff to business-critical projects. Continue Reading
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Definition
21 Jun 2022
virtual network functions (VNFs)
Virtual network functions (VNFs) are virtualized tasks formerly carried out by proprietary, dedicated hardware. Continue Reading
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Definition
17 Jun 2022
network functions virtualization (NFV)
Network functions virtualization (NFV) is a network architecture model designed to virtualize network services that have traditionally run on proprietary, dedicated network appliances. Continue Reading
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News
14 Jun 2022
Cisco launches cloud management of Catalyst, Nexus switches
The latest addition to the cloud-based Cisco Meraki console expands the company's subscription-based pricing for network monitoring and management software. Continue Reading
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Definition
10 Jun 2022
overlay network
An overlay network is a virtual or logical network that is created on top of an existing physical network. Continue Reading
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Definition
09 Jun 2022
What is network virtualization? Everything you need to know
Network virtualization is a method of combining the available resources in a network to consolidate multiple physical networks, divide a network into segments or create software networks between VMs. Continue Reading
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News
07 Jun 2022
Extreme Networks integrates acquisitions with SD-WAN, switch
After five major acquisitions in six years, Extreme Networks is prioritizing a unified, cloud-managed environment with SD-WAN, switches and a digital twin. Continue Reading
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Tip
03 Jun 2022
5 network virtualization challenges and how to solve them
The challenges of network virtualization include an overhaul of network architecture, thorough staff training and breaking down knowledge silos among IT departments. Continue Reading
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Definition
03 Jun 2022
VLAN (virtual LAN)
A virtual LAN (VLAN) is a logical overlay network that groups together a subset of devices that share a physical LAN, isolating the traffic for each group. Continue Reading
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Tip
01 Jun 2022
How zero trust unifies network virtualization
The combination of zero trust and network virtualization creates opportunities to strengthen security policies, increase cross-domain collaboration and improve overall visibility. Continue Reading
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Tip
31 May 2022
What software-defined LAN means for campus virtualization
LAN virtualization has long encompassed VLANs to segment network traffic. But software-defined LAN is emerging with zero-trust strategies to provide more comprehensive security. Continue Reading
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Definition
31 May 2022
virtual networking
Virtual networking is the abstraction of network resources from the underlying physical network infrastructure. Continue Reading
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Tip
24 May 2022
How enterprise networks use WAN virtualization
SD-WAN is the most common form of WAN virtualization. But virtual WAN strategies are evolving to include software-defined perimeter and cloud concepts. Continue Reading
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Tip
16 May 2022
Network virtualization benefits in the LAN, WAN and data center
Better traffic performance, scalability and security are some of the network virtualization benefits that enterprises can realize across their network infrastructure. Continue Reading
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Tip
12 May 2022
The role of network virtualization and SDN in data centers
SDN, zero trust and infrastructure as code are popular forms of network virtualization within the data center, moving away from manual VLANs toward policy-driven virtualization. Continue Reading
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Tip
11 May 2022
Carrier network virtualization leads to enterprise services
Starting with MPLS VPNs and SD-WAN, new carrier network virtualization options, like 5G network slicing, are becoming virtual enterprise network services, and more will follow. Continue Reading
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Tip
09 May 2022
How network virtualization works
Network virtualization uses abstraction to isolate applications and resources from the physical infrastructure. Benefits include faster provisioning, agility and operational efficiency. Continue Reading
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News
29 Mar 2022
Aruba launches VXLAN management, GPS-enabled Wi-Fi networks
Aruba's Central NetConductor is a cloud-based service that delivers automation and identity-based network access to enforce zero-trust policies for users and devices. Continue Reading
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News
16 Mar 2022
Pluribus taps the DPU for a distributed network fabric
Pluribus Networks' United Cloud Fabric shifts distributed network functions from a switch CPU to a DPU on the server. The technology unifies network management across switches and servers, the company said. Continue Reading
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Definition
03 Feb 2022
access control list (ACL)
An access control list (ACL) is a list of rules that specifies which users or systems are granted or denied access to a particular object or system resource. Continue Reading
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Tip
13 Jan 2022
What's happening with standalone 5G?
Standalone 5G is the next major update for 5G technology. Learn about the benefits SA 5G will bring and find out when operators will begin deploying it worldwide. Continue Reading
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Feature
03 Dec 2021
Evaluate must-have CDN features before choosing a product
No two CDN services are identical. Explore the main feature and function areas available in today's content delivery network market to better narrow down your choice of vendors. Continue Reading
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Definition
11 Oct 2021
network analyzer (protocol analyzer or packet analyzer)
A network analyzer -- also called a network protocol analyzer or packet analyzer -- is a software application, dedicated appliance or feature set within a network component used in network performance troubleshooting or to enhance protection against malicious activity within a corporate network. Continue Reading
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Definition
06 Oct 2021
computer hardware
Computer hardware is a collective term used to describe any of the physical components of an analog or digital computer. Continue Reading
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Definition
22 Sep 2021
What is an edge router?
An edge router is a specialized router located at a network boundary that enables an internal network to connect to external networks. Continue Reading
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Definition
09 Aug 2021
Spanning Tree Protocol (STP)
Spanning Tree Protocol (STP) is a Layer 2 network protocol used to prevent looping within a network topology. Continue Reading
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News
30 Mar 2021
Cisco network as a service for hybrid clouds on the horizon
Cisco's first network-as-a-service product will deliver hybrid cloud infrastructure. The company plans to start selling the NaaS offering and an all-in-one SASE product this year. Continue Reading
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Tip
14 Jan 2021
SASE challenges include network security roles, product choice
Secure Access Service Edge blends network and security functions. While this integration has its benefits, enterprises still need to address some SASE challenges. Continue Reading
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Tip
07 Jan 2021
Top 5 SASE use cases balance network connectivity, security
Secure Access Service Edge can enhance network performance and security controls for remote sites. Discover some of the other top SASE use cases and deployment options. Continue Reading
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News
13 Nov 2020
Cisco sees an end to string of quarterly revenue declines
Cisco is cautiously optimistic that revenues will improve following a 9% drop last quarter. Rising enterprise orders contributed to a positive forecast for the current quarter. Continue Reading
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Answer
21 Jul 2020
What's the difference between GRE and IPsec tunnels?
IPsec provides more comprehensive security for IP tunneling, while GRE tunnels work well when network teams need to tunnel with multiple protocols or multicast. Continue Reading
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Tip
15 Jul 2020
How to secure a home network for remote workforces
Remote workers rarely achieve the same network security at home that offices provide. Yet, with the right tools, remote workers can efficiently learn how to secure a home network. Continue Reading
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Tip
12 May 2020
Network engineer career advice amid the COVID-19 pandemic
As COVID-19 dramatically affects the global economy, people may ask, 'What's next for my career?' No one is sure, but these tips can help network engineers feel and stay secure. Continue Reading
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Tip
01 May 2020
Remote work infrastructure requires on-prem network changes
Demilitarized zone, network access control and VPN termination points are some of the on-premises components that need to be addressed in a remote work infrastructure. Continue Reading
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Tip
01 May 2020
The pros and cons of SD-WAN and remote access
SD-WAN could be a compelling option for enterprises that require remote access for mission-critical jobs. But IT teams should be aware of cost, training and implementation barriers. Continue Reading
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Tip
27 Apr 2020
5 needed product features to fix network management issues
Virtualization and public cloud monitoring are among five top network management issues facing companies as they assess tools designed to oversee increasingly complex networks. Continue Reading
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Tip
09 Apr 2020
Software-based routing on its way to become the new normal
SD-WAN took the networking world by storm, and software-based routing aims to do the same in the router market. Here's what to expect from the move to software. Continue Reading
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Tip
25 Mar 2020
802.3cg standard extends single-pair Ethernet range and speed
IEEE 802.3cg is a single-pair Ethernet standard that aims to support speeds up to 10 Mbps, extend Ethernet range up to 1,000 meters and offer multidrop capabilities. Continue Reading
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Answer
19 Mar 2020
How is SD-WAN as a service different from managed SD-WAN?
SD-WAN technology is available in a variety of business models, including SD-WAN as a service and managed SD-WAN. But how do the different consumption models compare? Continue Reading
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Answer
04 Mar 2020
What is the difference between LoRa and LoRaWAN?
LoRa is a modulation technique for specific wireless spectrum, while LoRaWAN is an open protocol that enables IoT devices to use LoRa for communication. Continue Reading
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Tip
02 Mar 2020
Ansible limitations for network automation
Ansible can be a powerful tool for network automation, but users should be aware of its limitations with debugging, performance, complex data structures and control flow. Continue Reading
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News
24 Feb 2020
Cisco SecureX provides front end for all security tools
Cisco SecureX, unveiled at RSA, provides centralized intelligence from all the vendor's security products. Also at RSA, Juniper adds encrypted traffic analysis to the Juniper ATP Cloud. Continue Reading
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Feature
07 Feb 2020
A glossary of network terms for management and monitoring
This glossary of network terms specifically highlights network management and monitoring processes. Explore these 12 key terms and concise definitions. Continue Reading
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Tip
05 Feb 2020
SD-WAN requirements for a multi-cloud world
With the emergence of a multi-cloud world, SD-WAN vendors must upgrade their platforms to ensure secure and reliable SD-WAN connectivity to cloud services. Continue Reading
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News
09 Jan 2020
Aruba SD-Branch gets intrusion detection, prevention software
The latest update of the Aruba SD-Branch includes intrusion detection and prevention software built into the product's gateway appliance. Continue Reading
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News
30 Dec 2019
Cisco 2020: Challenges, prospects shape the new year
Cisco 2020: The networking giant begins the new year with an overhauled service provider business, and SD-WAN and customer challenges in the enterprise. Continue Reading
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Answer
16 Dec 2019
SD-WAN vs. DMVPN vs. IPsec tunnels: How do I choose?
Software-defined WAN, DMVPN and IPsec tunnels each have a place among enterprises. Our network expert compares each one and explains where they can be most beneficial. Continue Reading
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Feature
25 Nov 2019
Understanding the evolution of Ethernet
First developed by Xerox PARC in the 1970s and ratified by IEEE as a standard in 1983, the evolution of Ethernet has taken this LAN technology through dozens of specifications. Continue Reading
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Tip
14 Nov 2019
Benefits of network automation software ease challenges for IT
Network automation software comes with a compelling list of benefits, but IT teams should confirm which processes are automated and how the software integrates with existing tools. Continue Reading
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Feature
01 Nov 2019
Learn how to master network traffic analysis with Python
In this book excerpt, explore key components of network security and network traffic analysis with Python scripting from Packt Publishing author José Manuel Ortega. Continue Reading
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Video
31 Oct 2019
An overview of how BGP works
Border Gateway Protocol makes the internet work, but how does BGP work? This animated video explains the basics of BGP and discusses its role in the internet. Continue Reading
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Feature
16 Oct 2019
3 potential multi-cloud challenges that could go unnoticed
Disaster recovery, vendor lock-in and cost are major factors as organizations evaluate multi-cloud strategies. However, these pros can become cons if teams aren't careful. Continue Reading
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Tip
07 Oct 2019
Data center transformation drives the ADC security use case
Application delivery controllers play many roles, but the ADC security use case might be most important. Learn about ADC features and how they boost data center security. Continue Reading
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Answer
03 Oct 2019
How do I create proper documentation of network automation?
Despite network automation's advantages, organizations can face disadvantages if they have improper network documentation. These four components can help enable proper documentation. Continue Reading
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Tip
02 Oct 2019
Automation improves firewall migration and network security
Firewall migration is a compelling automation use case, as automation scripts can shorten the migration process, eliminate unused rules and bolster overall network security. Continue Reading
